Ключевые слова: attention, auto, automobile, background, bicycle, blue, car, caution, circle, clouds, color, control, cycle, cycleway, danger, day, design, drive, driving, end, guide, information, law, limit, mandatory, maximum, metal, nobody, object, outdoors, outside, pillar, pole, prohibition, prohibitive, public, red, regulation, regulatory, restriction, road, round, rule, safe, safety, shape, sign, signpost, sky, speed, steel, street, sunny, symbol, traffic, transport, transportation, travel, twenty, vehicle, warning, way, white,